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TeV leptogenesis in Z-prime models and its collider probe

Eung Jin Chun
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Abstract

We show that the U(1)-prime models linked with the seesaw mechanism at TeV scale can lead to a successful baryogenesis through soft leptogenesis with a resonant behavior in the B parameter. Such a consideration constrains the Z-prime mass to be larger than 2-3 TeV depending on the seesaw scale and the spharelon rate. Together with multi-TeV Z-prime, large sneutrino-antisneutrino mixing and CP violating phenomena required by TeV leptogenesis could be searched for in future colliders by observing the distinct same-sign dilepton--dichargino as well as dislepton--diHiggs signatures.

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Eung Jin Chun. 2005-08-03. TeV leptogenesis in Z-prime models and its collider probe. https://doi.org/10.1103/physrevd.72.095010

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